<p>Presently, internal combustion engines provide power to move
the majority of vehicles on the roadway. While battery-powered
electric vehicles provide an alternative, their widespread acceptance is
hindered by range anxiety and longer charging/refueling times. Dynamic wireless power transfer (DWPT) has been
proposed as a means to reduce both range anxiety and charging/refueling
times. In DWPT, power is provided to
a vehicle in motion using electromagnetic fields transmitted by a transmitter
embedded within the roadway to a receiver at the underside of the
vehicle. For commercial vehicles, DWPT
often requires transferring hundreds of kW through a relatively large airgap
(> 20 cm). This requires a high-power DC-AC
converter at the transmitting end and a DC-AC converter
within the vehicle. </p>
In this research, a focus is
on the development of models that can be
used to support the design of DWPT systems. These include finite element-based
models of the transmitter/receiver that are used to predict power transfer,
coil loss, and core loss in DWPT systems.
The transmitter/receiver models are coupled to behavioral models of power
electronic converters to predict converter efficiency, mass, and volume based
upon switching frequency, transmitter/receiver currents, and source voltage.
To date, these models have been used to
explore alternative designs for a DWPT intended to power Class 8-9 vehicles on IN
interstates. Specifically, the models have been embedded within a
genetic algorithm-based multi-objective optimization in which the objectives include
minimizing system mass and minimizing loss.
Several designs from the optimization are
evaluated to consider practicality of the proposed designs.
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/13350389 |
| Date | 15 December 2020 |
| Creators | Akhil Prasad (9739226) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY 4.0 |
| Relation | https://figshare.com/articles/thesis/MULTI-OBJECTIVE_DESIGN_OF_DYNAMIC_WIRELESS_CHARGING_SYSTEMS_FOR_HEAVY_DUTY_VEHICLES/13350389 |
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